Means for delivering gas to internal-combustion engines



Jan. 23, 1923.

R. HALL.

MEANS FOR DELI VERING GAS To INTERNAL COMBUSTION ENGINES.

F1 LED SEPT.

J N 0 3 \I 524/ Patented den. 23', ieza. I

' one ,STS

earlier caries.

RICHARD HALL, OF VANCOUVER, BRITISH COLUMBIA, CANADA.

MEANS FOR DELIVERING GAS 'I O INTERNAL-COMBUSTION ENGINES.

App1ication filed September 1, 1921. Serial No. 497,744.

T a'ZZ whom it may concern: 1 Y

formation of a carbon deposit.

. ders of an internal combustion engine.

These engines usually rely on the suction of the pistons stroke for delivery of the explosive mixture to the cylinder and consequently the gaseous mixture must be more or less attenuated.

. The principal object of this invention is to thoroughly deliver the gaseous charge to the cylinders under a light pressure, instead of depending on the suction.

A further object of the invention is to abstract from the inpassing charge any portion of the hydrocarbon whichis in a liquid state, that 1s, .not thoroughly vaporized, which liquid, if allowed to pass into the cylinder,: not only detracts from the explosive value of the charge, but tends to foul the'cylifiders and spark plugs by the The means by which these several results are attained are fully set forth in the following specification, reference being made to the drawings by which it is accompanied,

in which: Fig. 1 is a vertical section through the mixing or fan chamber.

Fig. 2 is a plan of the mixing chamber with the upper part removed'to show the fan, and

Fig. 3is an end elevation of the intake manifold of the engine showing the application of the mixer thereto.

In these drawings 2 represents the pipe delivering the mlxture of hydrocarbon vapour and air from the carburetter to the intake manifold 3-01? the engine.

Between the pipes 2and the connection to 3 a fan, chamber 4 is introduced, in which chamber a bladed fan 6 is rotatably mounted on an axis coincident with that of the pipe connections and therefore in the line of the flow of the gas.

The chamber 4 is preferably formed in two parts, each being a -frustum of a hollow cone, the bases of which are joined together, at 5. 1

- The spindle of the fan 6 is carried in an anti-friction bearing supported in each connecting end of the chamber 4 and the blades of the fan are angled upwardfrom the plane of the joint 5 and conform generally to the inside of the upper part ofthe chamber.. This fan (Sis rotated at a high rate of speed by any convenient means, preferably by friction from a conical hub 7 resting on a correspondingly coned wheel 8 secured on a shaft 9 rotatably mounted in the lower part of the chamber 4 and driven-by-any suitable means by ower derived say from the engine shaft. 1 3

The hydrocarbon vapour and'airas delivered from the carburetter are thus indrawn by the fan 6 and thoroughly mixed, and the gaseous mixture is forcibly delivered to the intake manifold 3 of the engine. It will also be seen, by reference to the drawing, that the peripheraltips of the fan blades 6 are disposed at a plane approximately at the jointure of the frustum bases and by reason of such, and the relation thereof with the eccentricallydisposed upwardly projecting wall whichtforms the channel or sump 10,.any-liquid particles of the hydrocarbon that are not vaporized by the high velocity of the said fan are, by centrifugal force, thrown outward off of the said peripheral tips at a point out of and beyond the path or line of travel of the upwardly sucked gas and thereby allowed to trickle down into the said sump without any possibility of being picked up again from ,off the upper frustum wall and carried on by the upwardly rushing gas. The channel wall is disposed eccentrically. for the pur pose of providing a convenient bearing for the driving shaft 9 and also to form a channel I0 shallow at one side and deep .at the other, to allow for the perfect drain thereof, periodically, through the small pet cook 11 provided at its deepest point as shown.

' "It will be understood that the fan 6 and its casing 4 and the channel or sump 10 for collecting any liquid precipitate are entirely" supplementary to the carburetter and the lltl by Letters Patent, is:

1. In a device of the class described, a

fan chamber composed of two parts each being the frustum of a hollow cone, the larger bases of which are jointed together, a fan Within the casing the axis of the fan coinciding with the axis of the chamber and the blades of the fan extending angularly upward approximately from the plane of the casing jolnt, means for driving the' fan by friction from an external source of power, and a sump adapted to collect any precipitate thrown from the fan blades.

2. In a deviceof the class described, a fan casing composed of two parts each being the frustum of a hollow cone, the larger bases of which are jointed together, a fan within the casing, the axis of the fan coinciding with the axis of the casing and having the blades thereof extending angularly upward approximately from the plane of the casing joint, a channel forming wall within said casing with the upoer edge thereof being approximately in t e plane of the casing joint, the peripheral tips of said fan blades extending out of the path of the upwardly rushing gas as it leaves said upper edge of said channel forming wall and means for driving the fan from an external source of power. I

3. ,In a device of the class described, a fan casing composed of two parts each being the frustum of a hollow cone. the larger bases of which are jointed together, a fan within the casing, the axis of the fan coinciding with the axis of the casing and having the blades thereof extending angularly upward from a plane approximately in the plane of the casing joint, an eccentrically disposed channel forming wall Within said casing for forming a channel deep at one side and shallow at the other and adapted to collect any precipitate thrown from said fan blades, a drain cock in the deepest point of said channel, the upper edge of said channel forming wall being disposed in a plane friction from an external source of power. I

4. As a new article of manufacture, a means for delivering fuel toan internal combustion engine, comprising a fan casing composed of two parts each being the frustum of a hollow cone, the larger bases of which are provided with flanges for being joined to each other, the smaller bases of which are provided with flanges for flange connecting the device within the intake manifold of an internal combustion engine, a cross web in each of said smaller base, an adjustable bearing carried by each of said webs, a fan shaft carried in said bearings with the axis thereof coinciding with the axis of said fan casing, a fan on said' shaft,

the blades of said fan extending angula'rly upwardly approximately from the plane of the frustums larger base jointure, means for driving the fan by friction from an external sourceof power, and a sump adapted to collect any precipitate thrown from the fan blades.

5. In a device of the class described, a fan casing composed of two parts each being the frustum of a hollow cone, the larger bases ofwhich are jointed together, a fan within the casing, the axis of the fan coinciding with the axis of the casing and having the blades thereof extending angularly upward from a plane approximately in the plane of the casing joint, an eccentrically disposed channel forming wall within said casing for forming a channel deepv at one side and shallow at the other and adapted to collect any precipitate thrown from said fan blades, a drain cock in the deepest point of said channel, the peripheral tips of said 'fan blades extending out of and beyond the path of the upwardly rushing gas as it leaves the said upper edge of said channel 

